﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace QLVMBAY
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                this.ddlxSomething.AddItemGroup("Administrators");
                
                    this.ddlxSomething.Items.Add(new ListItem("aaa","1"));


                    this.ddlxSomething.AddItemGroup("Users");

                    this.ddlxSomething.Items.Add(new ListItem("bbbb", "1"));
                }            

        }
    }
}